public void ChangeNodeType(String ToType)
{
if (treeView1.SelectedItem == null)
{
return;
}
treeView1.SelectedItem.EndEdit();
String FromType = treeView1.SelectedItem.NodeData.DataItem.NodeType;
NodeDataObject nodeDataObject = treeView1.SelectedItem.NodeData;
if (nodeDataObject.DataItem.NodeType == ToType)
{
MessageBox.Show(String.Format("本节点己经是{0}型的了。", ToType));
return;
}
if (NodeTypeChanger.CanChangeTo(FromType, ToType) == false)
{
MessageBox.Show(string.Format("不能完成从{0}到{1}类型的转换。", FromType, ToType));
return;
}
NodeDataObject detailTextNodeDataObject = NodeTypeChanger.GetNodeChanger(FromType, ToType).ChangeTo(nodeDataObject, DALConfig.getEFConnectionString(dbInfoObject.DatabaseFilePath));
if (detailTextNodeDataObject != null)
{
treeView1.SelectedItem.NodeData = detailTextNodeDataObject;
ChangeNodeIcon(treeView1.SelectedItem, detailTextNodeDataObject.DataItem.SelectedIcon);
LoadDataAndShowInUI(treeView1.SelectedItem);
SaveTreeToDB();
}
}
/// <summary>
/// 依据节点类型创建"空白"的数据信息对象，其HasBeenLoadFromStorage属性为false
/// （无需数据存储的节点，如OnlyText例此，其HasBeenLoadFromStorage始终为true）
/// </summary>
/// <param name="treeNodeType"></param>
/// <returns></returns>
public static NodeDataObject CreateDataInfoNode(String treeNodeType, String EFConnectionString)
{
NodeDataObject nodeDataObject = new NodeDataObject();
if (treeNodeType == "InfoNode")
{
InfoNodeDataInfo info = new InfoNodeDataInfo()
{
MainWindow = _mainWindow
};
InfoNodeAccess access = new InfoNodeAccess(EFConnectionString);
info.SetRootControlDataAccessObj(access);
nodeDataObject.DataItem = info;
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject = access;
}
if (treeNodeType == "LabelNode")
{
LabelNodeDataInfo info = new LabelNodeDataInfo()
{
MainWindow = _mainWindow
};
LabelNodeAccess accessObj = new LabelNodeAccess(EFConnectionString);
info.SetRootControlDataAccessObj(accessObj);
nodeDataObject.DataItem = info;
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject = accessObj;
}
return(nodeDataObject);
}
/// <summary>
/// 添加兄弟节点，如果参数中有为null或空串的，或者当前TreeView中没有选中的节点，返回null
/// </summary>
/// <param name="nodeText"></param>
/// <param name="nodeIcon"></param>
/// <returns></returns>
public TreeViewIconsItem AddSibling(String nodeText, NodeDataObject nodeDataObject)
{
if (String.IsNullOrEmpty(nodeText) || tree.SelectedItem == null)
{
return(null);
}
return(addNode(AddNodeCategory.AddSibling, tree.SelectedItem as TreeViewIconsItem, nodeText, nodeDataObject));
}
/// <summary>
/// 添加根节点，如果参数中有为null或空串的，返回null
/// </summary>
/// <param name="nodeText"></param>
/// <param name="nodeIcon"></param>
/// <returns></returns>
public TreeViewIconsItem AddRoot(String nodeText, NodeDataObject nodeDataObject)
{
if (String.IsNullOrEmpty(nodeText))
{
return(null);
}
return(addNode(AddNodeCategory.AddRoot, null, nodeText, nodeDataObject));
}
public NodeDataObject ChangeTo(NodeDataObject sourceObject, String EFConnectionString)
{
NodeDataObject dataObject = NodeFactory.CreateDataInfoNode("DetailText", EFConnectionString);
dataObject.DataItem.Path = sourceObject.DataItem.Path;
//在数据库中创建对象
dataObject.AccessObject.Create(dataObject.DataItem);
return(dataObject);
}
public NodeDataObject ChangeTo(NodeDataObject sourceObject, String EFConnectionString)
{
NodeDataObject dataObject = NodeFactory.CreateDataInfoNode("OnlyText", EFConnectionString);
dataObject.DataItem.Path = sourceObject.DataItem.Path;
//在数据库中删除记录
sourceObject.AccessObject.DeleteDataInfoObject(sourceObject.DataItem);
return(dataObject);
}
public InterfaceLibrary.NodeDataObject ChangeTo(InterfaceLibrary.NodeDataObject sourceObject, String EFConnectionString)
{
NodeDataObject dataObject = NodeFactory.CreateDataInfoNode("Folder", EFConnectionString);
dataObject.DataItem.Path = sourceObject.DataItem.Path;
//在数据库中创建对象
dataObject.AccessObject.Create(dataObject.DataItem);
return(dataObject);
}
/// <summary>
/// 再标签节点中显示信息节点内容
/// </summary>
/// <param name="newSelectedNode"></param>
private void LoadDataAndShowInLabelNodeUI(TreeViewIconsItem newSelectedNode)
{
NodeDataObject dataInfoObject = newSelectedNode.NodeData;
//正确地设置可视化界面所关联的数据存取对象
dataInfoObject.DataItem.SetRootControlDataAccessObj(dataInfoObject.AccessObject);
//检查一下数据是否己被装入
if (!dataInfoObject.DataItem.HasBeenLoadFromStorage)
{
//装入数据
IDataInfo dataObj = dataInfoObject.AccessObject.GetDataInfoObjectByPath(newSelectedNode.Path);
if (dataObj != null)
{
//给将己装入数据的对象添加对主窗体的引用
if (NodeFactory._mainWindow != null)
{
dataObj.MainWindow = NodeFactory._mainWindow;
}
//把节点数据对象挂到节点上
newSelectedNode.NodeData.DataItem = dataObj;
}
}
if (dataInfoObject.DataItem.ShouldEmbedInHostWorkingBench)
{
if (dataInfoObject.DataItem.RootControl.Parent != null)
{
(dataInfoObject.DataItem.RootControl.Parent as ContentControl).Content = null;
}
(NodeUIContainer.Content as LabelNodeControl).InnerContainer.Content = dataInfoObject.DataItem.RootControl;
if (dataInfoObject.DataItem.RootControl is InfoNodeControl)
{
(dataInfoObject.DataItem.RootControl as InfoNodeControl).InnerSuperRichTextBox.EditorTool = EditorTool;
}
//根节点不显示内容
if (newSelectedNode.Parent is TreeView)
{
NodeUIContainer.Content = null;
}
}
//显示最新的数据
dataInfoObject.DataItem.BindToRootControl();
dataInfoObject.DataItem.RefreshDisplay();
}
/// <summary>
/// 依据数据库连接字串（EntityFramework格式）创建合适的IDataAcess对象
/// </summary>
/// <param name="treeNodeType"></param>
/// <param name="EFConnectionString"></param>
/// <returns></returns>
public static IDataAccess CreateNodeAccessObject(String treeNodeType, String EFConnectionString)
{
NodeDataObject nodeDataObject = new NodeDataObject();
if (treeNodeType == "InfoNode")
{
return(new InfoNodeAccess(EFConnectionString));
}
if (treeNodeType == "LabelNode")
{
return(new LabelNodeAccess(EFConnectionString));
}
return(null);
}
public InterfaceLibrary.NodeDataObject ChangeTo(InterfaceLibrary.NodeDataObject sourceObject, String EFConnectionString)
{
FolderInfo folderInfo = sourceObject.DataItem as FolderInfo;
NodeDataObject dataObject = NodeFactory.CreateDataInfoNode("DetailText", EFConnectionString);
DetailTextInfo detailInfo = dataObject.DataItem as DetailTextInfo;
detailInfo.Path = sourceObject.DataItem.Path;
detailInfo.Text = folderInfo.Text;
detailInfo.RTFText = folderInfo.RTFText;
//在数据库中删除记录
sourceObject.AccessObject.DeleteDataInfoObject(folderInfo);
//在数据库中创建对象
dataObject.AccessObject.Create(detailInfo);
return(dataObject);
}
public TreeViewIconsItem(SuperTreeView tree, NodeDataObject dataObject)
{
belongToTreeView = tree;
_dataObject = dataObject;
//以下处理UI控件
headerContainer = new StackPanel();
// 设置StackPanel中的内容水平排列
headerContainer.Orientation = Orientation.Horizontal;
//将Header设置为StackPanel
Header = headerContainer;
//设置正常状态下的显示控件
_iconImageControl = new Image();
_iconImageControl.VerticalAlignment = VerticalAlignment.Center;
_iconImageControl.Margin = new Thickness(0, 0, 4, 0);
_iconImageControl.Source = _icon;
// 向StackPanel对象中添加一个图标对象
headerContainer.Children.Add(_iconImageControl);
// 创建用于添加文本信息的TextBlock对象
textBlock = new TextBlock();
textBlock.FontSize = TreeNodeDefaultFontSize;
textBlock.VerticalAlignment = VerticalAlignment.Center;
// 向StackPanel对象中添加文本信息
headerContainer.Children.Add(textBlock);
//实例化文本框控件，准备用于编辑
edtText = new TextBox();
edtText.FontSize = TreeNodeDefaultFontSize;
edtText.MinWidth = 100;
//对事件进行响应
edtText.KeyDown += edtText_KeyDown;
edtText.LostFocus += edtText_LostFocus;
//由于默认情况下WPF的TextBox的Cut存在BUG：即完成复制工作但却不删除选中的文字，因此不得不用自己的代码取代默认的命令响应代码
CommandBinding bind = new CommandBinding();
bind.Command = ApplicationCommands.Cut;
bind.Executed += bind_Executed;
bind.CanExecute += bind_CanExecute;
edtText.CommandBindings.Add(bind);
//使用当前时间作为本Item的ID
id = TimerUtils.getHighPrecisionCurrentTime();
}
/// <summary>
/// 依据数据库连接字串（EntityFramework格式）创建合适的IDataAcess对象
/// </summary>
/// <param name="NodeType"></param>
/// <param name="EFConnectionString"></param>
/// <returns></returns>
public static IDataAccess CreateNodeAccessObject(String NodeType, String EFConnectionString)
{
NodeDataObject nodeDataObject = new NodeDataObject();
if (NodeType == "OnlyText")
{
return(null);
}
if (NodeType == "Folder")
{
return(new FolderAccess(EFConnectionString));
}
if (NodeType == "DetailText")
{
return(new DetailTextAccess(EFConnectionString));
}
return(null);
}
/// <summary>
/// 依据节点类型创建"空白"的数据信息对象，其HasBeenLoadFromStorage属性为false
/// （无需数据存储的节点，如OnlyText例此，其HasBeenLoadFromStorage始终为true）
/// </summary>
/// <param name="NodeType"></param>
/// <returns></returns>
public static NodeDataObject CreateDataInfoNode(String NodeType, String EFConnectionString)
{
NodeDataObject nodeDataObject = new NodeDataObject();
if (NodeType == "OnlyText")
{
nodeDataObject.DataItem = new OnlyTextInfo()
{
MainWindow = _mainWindow
};
nodeDataObject.AccessObject = null;
}
if (NodeType == "Folder")
{
FolderInfo info = new FolderInfo()
{
MainWindow = _mainWindow
};
FolderAccess access = new FolderAccess(EFConnectionString);
info.SetRootControlDataAccessObj(access);
nodeDataObject.DataItem = info;
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject = access;
}
if (NodeType == "DetailText")
{
DetailTextInfo info = new DetailTextInfo()
{
MainWindow = _mainWindow
};
DetailTextAccess accessObj = new DetailTextAccess(EFConnectionString);
info.SetRootControlDataAccessObj(accessObj);
nodeDataObject.DataItem = info;
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject = accessObj;
}
return(nodeDataObject);
}
/// <summary>
/// 为新节点提取数据并显示
/// </summary>
/// <param name="newSelectedNode"></param>
private void LoadDataAndShowInUI(TreeViewIconsItem newSelectedNode)
{
if (newSelectedNode.NodeData.DataItem.NodeType == "OnlyText")
{
NodeUIContainer.Content = null;
newSelectedNode.NodeData.DataItem.RefreshDisplay();
return;
}
NodeDataObject dataInfoObject = newSelectedNode.NodeData;
//正确地设置可视化界面所关联的数据存取对象
dataInfoObject.DataItem.SetRootControlDataAccessObj(dataInfoObject.AccessObject);
//检查一下数据是否己被装入
if (!dataInfoObject.DataItem.HasBeenLoadFromStorage)
{
//装入数据
IDataInfo dataObj = dataInfoObject.AccessObject.GetDataInfoObjectByPath(newSelectedNode.Path);
if (dataObj != null)
{
//给将己装入数据的对象添加对主窗体的引用
if (NodeFactory._mainWindow != null)
{
dataObj.MainWindow = NodeFactory._mainWindow;
}
//把节点数据对象挂到节点上
newSelectedNode.NodeData.DataItem = dataObj;
}
}
if (dataInfoObject.DataItem.ShouldEmbedInHostWorkingBench)
{
if (dataInfoObject.DataItem.RootControl.Parent != null)
{
(dataInfoObject.DataItem.RootControl.Parent as ContentControl).Content = null;
}
NodeUIContainer.Content = dataInfoObject.DataItem.RootControl;
}
//显示最新的数据
dataInfoObject.DataItem.BindToRootControl();
dataInfoObject.DataItem.RefreshDisplay();
}
// <summary>
/// 从XElement中创建TreeViewIconsItem对象，不理会其子节点
/// </summary>
/// <param name="element"></param>
/// <returns></returns>
private TreeViewIconsItem CreateTreeViewNodeFromXElement(XElement element)
{
if (element == null)
{
return(null);
}
NodeDataObject nodeDataObject = NodeFactory.CreateDataInfoNode(element.Attribute("NodeType").Value, EFConnectionString);
TreeViewIconsItem node = new TreeViewIconsItem(this, nodeDataObject);
node.HeaderText = element.Attribute("Title").Value;
if (element.Attribute("Foreground") != null)
{
String color = element.Attribute("Foreground").Value;
node.MyForeground = new SolidColorBrush((Color)ColorConverter.ConvertFromString(color));
}
else
{
//默认为黑色
node.Foreground = Brushes.Black;
}
if (element.Attribute("FontWeight") != null)
{
String FontWeight = element.Attribute("FontWeight").Value;
if (FontWeight != "Normal")
{
node.FontWeight = FontWeights.ExtraBold;
}
else
{
node.FontWeight = FontWeights.Normal;
}
}
node.Icon = nodeDataObject.DataItem.NormalIcon;
return(node);
}
private void AddNode(AddNodeCategory category)
{
string treeNodeType = labeltree.TreeNodeType;
//为新节点生成默认文本
String NodeText = MainWin.getDefaultNodeText(treeNodeType) + (labeltree.NodeCount + 1);
//尝试从剪贴板中提取文本
String textFromClipboard = StringUtils.getFirstLineOfString(Clipboard.GetText());
if (String.IsNullOrEmpty(textFromClipboard) == false && textFromClipboard != LastPasteNodeText && textFromClipboard.IndexOf("/") == -1)
{
//检测一下从剪贴板中获取的文本是否有效（即不会导致重名的节点出现）
String newNodeText = textFromClipboard;
bool nodeExisted = labeltree.IsNodeExisted(MainWin.getNewNodePath(category, newNodeText));
//如果不存在同名的路径
if (nodeExisted == false)
{
NodeText = newNodeText;
LastPasteNodeText = NodeText;
}
}
//如果还有重复路径的，则循环使用随机数，务必保证路径不会相同
while (labeltree.IsNodeExisted(MainWin.getNewNodePath(category, NodeText)))
{
NodeText = MainWin.getDefaultNodeText(treeNodeType) + new Random().Next() as string;
}
//创建默认的节点数据对象
NodeDataObject dataobject = NodeFactory.CreateDataInfoNode(treeNodeType, DALConfig.getEFConnectionString(curDbInfoTab.dbInfoObject.DatabaseFilePath));
TreeViewIconsItem newNode = null;
//在树中添加节点
switch (category)
{
case AddNodeCategory.AddRoot:
newNode = labeltree.AddRoot(NodeText, dataobject);
curDbInfoTab.LabelViewObj.SuperTree.AddRoot(NodeText, dataobject);
break;
case AddNodeCategory.AddChild:
newNode = labeltree.AddChild(NodeText, dataobject);
curDbInfoTab.LabelViewObj.SuperTree.AddChild(NodeText, dataobject);
break;
case AddNodeCategory.AddSibling:
newNode = labeltree.AddSibling(NodeText, dataobject);
curDbInfoTab.LabelViewObj.SuperTree.AddSibling(NodeText, dataobject);
break;
default:
break;
}
if (newNode == null)
{
return;
}
//新节点，默认不是粗体的
newNode.FontWeight = FontWeights.Normal;
//在数据库中创建记录
if (dataobject.AccessObject != null)
{
dataobject.AccessObject.Create(dataobject.DataItem);
}
//保存树结构
curDbInfoTab.SaveTreeToDB(labeltree);
//自动进入编辑状态
newNode.BeginEdit();
}
public TreeViewIconsItem(SuperTreeView tree, NodeDataObject dataObject, string iconType)
{
belongToTreeView = tree;
_dataObject = dataObject;
//以下处理UI控件
headerContainer = new StackPanel();
// 设置StackPanel中的内容水平排列
headerContainer.Orientation = Orientation.Horizontal;
//将Header设置为StackPanel
Header = headerContainer;
//设置正常状态下的显示控件
_iconImageControl = new Image();
_iconImageControl.VerticalAlignment = VerticalAlignment.Center;
_iconImageControl.Margin = new Thickness(0, 0, 4, 0);
_iconImageControl.Source = _icon;
// 向StackPanel对象中添加一个图标对象
headerContainer.Children.Add(_iconImageControl);
// 创建用于添加文本信息的TextBlock对象
textBlock = new TextBlock();
textBlock.FontSize = TreeNodeDefaultFontSize;
textBlock.VerticalAlignment = VerticalAlignment.Center;
// 向StackPanel对象中添加文本信息
headerContainer.Children.Add(textBlock);
//实例化文本框控件，准备用于编辑
edtText = new TextBox();
edtText.FontSize = TreeNodeDefaultFontSize;
edtText.MinWidth = 100;
//对事件进行响应
edtText.KeyDown += edtText_KeyDown;
edtText.LostFocus += edtText_LostFocus;
//由于默认情况下WPF的TextBox的Cut存在BUG：即完成复制工作但却不删除选中的文字，因此不得不用自己的代码取代默认的命令响应代码
CommandBinding bind = new CommandBinding();
bind.Command = ApplicationCommands.Cut;
bind.Executed += bind_Executed;
bind.CanExecute += bind_CanExecute;
edtText.CommandBindings.Add(bind);
//使用当前时间作为本Item的ID
id = TimerUtils.getHighPrecisionCurrentTime();
//给节点添加样式,直接在xaml文件中添加,貌似只能添加第一层的样式
//TabItem样式绑定的几种方式
//item.SetValue(TabItem.StyleProperty, Application.Current.Resources["TabItemStyle1"] );
//item.Style = Resources["TabItemStyle1"] as Style;
//item.Style = (Style)this.FindResource("TabItemStyle1.2");
this.Style = (Style)this.FindResource("TreeViewItem1");
IconType = iconType;
if (IconType == "FileIcon")
{
Icon = ImageUtils.GetBitmapSourceFromImageFileName("pack://application:,,,/WPFSuperTreeView;component/Images/FileIcon.png", UriKind.Absolute);
}
else if (IconType == "LabelNode")
{
Icon = ImageUtils.GetBitmapSourceFromImageFileName("pack://application:,,,/WPFSuperTreeView;component/Images/LabelNode.png", UriKind.Absolute);
}
else
{
Icon = ImageUtils.GetBitmapSourceFromImageFileName("pack://application:,,,/WPFSuperTreeView;component/Images/InfoNode.png", UriKind.Absolute);
}
}
/// <summary>
/// 添加节点
/// 成功返回新节点，不成功，返回null
/// 新节点自动展开且选中
/// </summary>
/// <param name="parent"></param>
/// <param name="nodeText"></param>
/// <param name="nodeIcon"></param>
/// <returns></returns>
private TreeViewIconsItem addNode(AddNodeCategory addType, TreeViewIconsItem selectedNode, String nodeText, NodeDataObject nodeDataObject)
{
if (selectedNode != null)
{
selectedNode.IsExpanded = true;
}
ShouldRaiseSelectedItemChangedEvent = true;
TreeViewIconsItem treeNode = new TreeViewIconsItem(this, nodeDataObject);
treeNode.HeaderText = nodeText;
treeNode.Icon = nodeDataObject.DataItem.NormalIcon;
//自动展开
treeNode.IsExpanded = true;
switch (addType)
{
case AddNodeCategory.AddRoot:
treeNode.Path = "/" + nodeText + "/";
nodeDataObject.DataItem.Path = treeNode.Path;
tree.Items.Add(treeNode);
nodesManager.nodes.Add(treeNode);
break;
case AddNodeCategory.AddChild:
if (selectedNode != null)
{
treeNode.Path = selectedNode.Path + nodeText + "/";
nodeDataObject.DataItem.Path = treeNode.Path;
selectedNode.Items.Add(treeNode);
nodesManager.nodes.Add(treeNode);
}
else
{
return(null);
}
break;
case AddNodeCategory.AddSibling:
if (selectedNode != null && selectedNode.Parent != null)
{
//如果选中节点是顶层节点
if (selectedNode.Parent == tree)
{
treeNode.Path = "/" + nodeText + "/";
nodeDataObject.DataItem.Path = treeNode.Path;
tree.Items.Add(treeNode);
}
else
{
//不是顶层节点
TreeViewIconsItem parent = selectedNode.Parent as TreeViewIconsItem;
treeNode.Path = parent.Path + nodeText + "/";
nodeDataObject.DataItem.Path = treeNode.Path;
parent.Items.Add(treeNode);
}
nodesManager.nodes.Add(treeNode);
}
else //当前没有选中节点或选中节点没有父亲
{
return(null);
}
break;
default:
break;
}
if (_autoSelectNewNode)
{
treeNode.IsSelected = true;
}
//更新树的存储
String treeXml = saveToXmlString();
if (_repository != null)
{
_repository.SaveTree(treeXml);
}
return(treeNode);
}